Improved machine for desiccating leached tan and other substances



UNITED STATEs PATENT OEETCE.

CHARLES H. MOSELEY, OF WINGHESTER, MASSACHUSETTS.

IMPROVED MACHINE FOR DESICCATING LEACHED TAN AND OTHER SUBSTANCE'SV Specification forming part of Letters Patent No. 82,739, dated October G, 1868.

To all whom it may concern.'

Be it known that I, CHARLES H. MosELEY, of Winchester, in the county of Middlesex and State of Massachusetts, have invented a new and useful Machine for Expressing Liquor, Desiccating Tan or various other matters; and I do hereby declare the same to be fully described in the following specication and repl resented in the accompanying drawings, of which- Figure l is a top view, Fig. 2 a side elevation, and Fig. 3 a vertical and longitudinal section, of it.

In such drawings, A denotes a tan-bleaching vat, having arranged over it an endless apron, B, which travels through a hopper, C, and is supported by two rollers, D E, arranged outside of the hopper. A driving-shaft, F, arranged underneath the front roller, E, ear ries a pinion, G, which engages with and is arranged between two gears, H I, one of which is fixed on the shaft of one of a pair of expressing-rollers, K L. These rollers are arranged below the endless apron, a hopper, M, being disposed over the bite of the rollers and under'and in advance of the front roller, E, of the endless apron. The two rollers K L are to be hollow to receive steam or hot air, which may be let into them through their journals a b by branch pipes c c leading from a conduit, d, which may be supposed to extend from a steamgenerator or an air-heatin g furnace. Under the bite of the two expressing-rollers is an inclined spout or chute, R, arranged to dis charge upon an elevator, N composed of an endless belt, d', and a series of brackets, c c e, xed to the outer surface of such belt. The said endless belt is supported by and so as to travel on two rollers or drums, f g, one of which is fixed on a. driving-shaft, h, and the other within a chute, z', the whole being arranged within a suitable supporting-frame, O. There is a pulley, k, fixed on the shaft h, such being to be driven by an endless belt going around it, and another or driving pulley, l, fixed on the shaft F.

When the shaft F is put in revolution the endless apron, the expressing-rollers, and the elevator will be simultaneously putin operation. The tan or ground bark, after having been leached in the vat in the ordinary way, is, by a shovel, to be thrown upon the endless apron, which will conduct it to and discharge it into the lower hopper, M, by which it will be directed into the bite of the expressing-rollers. As it may be carried between them, they will force out of it and canse to be evaporated from it any liquid which it may contain. This liquid will be discharged at the ends of the hop per, which are perforated for the purpose, as shown at p. The material will drop from the rollers into the spout under them, and by it will be discharged into the buckets of the chamber or conveyer as they may successively pass the spout. They will raise it and empty it into the chute t', by which it may be discharged into a cart or other receptacle.

The tan so treated may be used to great advantage for fuel. The liquid expressed from it may also be employed for various purposes in the arts.

I claiml. The arrangement as well as the combination of the endless apron or conveyer B, the hopper C, through which it passes, the auxiliary hopper M, and the pair of heating and expressing rollers K L, such being provided with mechanism for operating them, substantially as described.

2. The arrangement and combination of the leaching-vat A, the endless apron B, the hoppers C M, and the pair of expressing-rollers K L, the whole being disposed within a frame, as set forth.

3. The combination of the elevator N with the expressing-rollers K L, the two hoppers C M, and the endless apron B, or the latter and the leaching-vatA, the whole being arranged lin a frame, and provided with mechanism for operating them, substantially in manner and for the purpose or objects as hereinbefore specified.

C. H. MOSELEY. Witnesses:

It. H. EDDY, F. P. HALE, Jr. 

